The former BBC director general, Greg Dyke, has turned sculptor for a celebrity auction in aid of saving Britain's trees. Dyke's effort is a model television set with an oak branch emerging from the middle of it, entitled: "If I don't like a programme!" So much more satisfying than putting your foot through it. Other contributors include Channel 4 News presenter Jon Snow (a branch with a tie round it), actor Joanna Lumley and presenter Sarah Kennedy, whose creation, called Walking the Plank, is entirely unrelated to her recent departure from Radio 2. Dyke's creation was among lots that have already been sold – it made £100 – but there are another 61 exhibits still up for grabs. There is no truth in the rumour that an alternative Dyke piece, "If I don't like a former Downing Street spin doctor" was rejected on grounds of taste.